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/*
ds81 - Nintendo DS ZX81 emulator.
Copyright (C) 2006 Ian Cowburn <ianc@noddybox.co.uk>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
$Id: framebuffer.h 43 2007-03-12 00:59:51Z ianc $
*/
#ifndef DS81_FRAMEBUFFER_H
#define DS81_FRAMEBUFFER_H
/* Predefined colours.
*/
typedef enum
{
COL_TRANSPARENT = -1,
COL_BLACK = 0,
COL_WHITE = 240,
COL_RED = 241,
COL_GREEN = 242,
COL_BLUE = 243,
COL_GUISELECT = 244,
COL_GREY = 245,
COL_LIGHTGREY = 246,
COL_DARKGREY = 247,
COL_YELLOW = 248
} FB_Colour;
/* Initialise 'framebuffer' code. vram is where the 8-bit framebuffer is.
palette is the palette to use/set.
*/
void FB_Init(uint16 *vram, uint16 *palette);
/* Gives access to the parameters of the frame buffer.
*/
uint16 *FB_VRAM(void);
uint16 *FB_PALETTE(void);
/* Load the internal framebuffer font as a set of ASCII tiles (starting with
space) at tiles. The tiles will use colour COL_WHITE.
*/
void FB_LoadASCIITiles(uint16 *tiles);
/* Print the text into the framebuffer.
*/
void FB_Print(const char *text, int x, int y,
FB_Colour colour, FB_Colour paper);
void FB_Centre(const char *text, int y,
FB_Colour colour, FB_Colour paper);
void FB_printf(int x, int y, FB_Colour colour, FB_Colour paper,
const char *format, ...);
/* Lines and boxes.
*/
void FB_HLine(int x1, int x2, int y, FB_Colour colour);
void FB_VLine(int x, int y1, int y2, FB_Colour colour);
void FB_Box(int x, int y, int w, int h, FB_Colour colour);
void FB_FillBox(int x, int y, int w, int h, FB_Colour colour);
/* Clear to background
*/
void FB_Clear(void);
/* Draw the image. The image must be an 8-bit image, but with only the first
16 palette entries used. Just to complicate matters!
The image is assumed to be an even number of pixels wide. Also the passed
X co-ord will be forced even.
offset is used to give an offset into the palette to place colours from the
image. Palette entries 1 - 128 will always be safe to use (these routines
will never use them).
*/
void FB_Blit(sImage *img, int x, int y, int offset);
#endif /* DS81_FRAMEBUFFER_H */
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